Graft having a pocket for receiving a stent and woven graft material, forming a pocket

Abstract

A tubular graft for use in a stent graft. The tubular graft may include a first woven layer that forms a first side of the tubular graft, where the first woven layer has a set of first warp ends. A second woven layer may forma a second side of the tubular graft, where the second woven layer has a set of second warp ends, and where the second warp ends are distinct from the first warp ends. A woven pocket flap may extend from the first woven layer, where a pocket opening is defined between the woven pocket flap and the first woven layer, and where the woven pocket flap includes at least one common weft yarn with the first woven layer.

We claim: 
     
       1. A tubular graft for use in a stent graft, the tubular graft comprising:
 a first woven layer that forms a first side of the tubular graft, the first woven layer having a set of first warp ends; 
 a second woven layer that forms a second side of the tubular graft, the second woven layer having a set of second warp ends, wherein the second warp ends are distinct from the first warp ends; and 
 a woven pocket flap that extends from the first woven layer, wherein a pocket opening is defined between the woven pocket flap and the first woven layer, and wherein the woven pocket flap includes at least one common weft yarn with the first woven layer, 
 wherein the woven pocket flap includes a mouth configured to provide access to the pocket opening, the mouth facing a proximal direction or a distal direction such that the woven pocket flap is configured to receive an apex of a stent through the mouth; and 
 the woven pocket flap further comprising a first woven pocket flap and a second woven pocket flap, the mouth further comprising a first mouth facing the proximal direction and a second mouth formed by the second woven pocket flap facing the distal direction for receiving a second apex of the stent. 
 
     
     
       2. The tubular graft of  claim 1 , wherein the woven pocket flap includes a triangular shape, wherein a first portion of the triangular shape has more warp ends than a second portion of the triangular shape, and wherein the first portion is adjacent to the pocket opening. 
     
     
       3. The tubular graft of  claim 1 , wherein the second woven pocket flap extends from the second woven layer, wherein a second pocket opening is defined between the second woven pocket flap and the second woven layer, and wherein the second woven pocket flap includes at least one common weft yarn with the second woven layer. 
     
     
       4. The tubular graft of  claim 1 , wherein the pocket opening receives a portion of a stent wherein a portion of the stent is located between the first woven pocket flap and the second woven pocket flap when deployed such that the portion of the stent is located radially outside of an outer-most surface of the tubular graft. 
     
     
       5. The tubular graft of  claim 1 , wherein a securement point is formed between the woven pocket flap and the first woven layer to lock a portion of the stent within the pocket opening, and wherein the securement point is spaced from an edge of the woven pocket flap. 
     
     
       6. The tubular graft of  claim 1 , wherein the mouth for accessing the pocket opening extends radially outwardly from an exterior surface of the tubular graft. 
     
     
       7. A tubular graft for use in a stent graft, the tubular graft comprising:
 a first woven layer that forms a first side of the tubular graft, the first woven layer having a set of first warp ends; 
 a second woven layer that forms a second side of the tubular graft, the second woven layer having a set of second warp ends, wherein the second warp ends are distinct from the first warp ends; and 
 a woven pocket flap that extends from the first woven layer, wherein a pocket opening is defined between the woven pocket flap and the first woven layer, and wherein the woven pocket flap includes at least one common weft yarn with the first woven layer, 
 wherein the woven pocket flap includes a mouth configured to provide access to the pocket opening, the mouth facing a proximal direction or a distal direction such that the woven pocket flap is configured to receive an apex of a stent through the mouth, 
 wherein the woven pocket flap includes a set of third warp ends, and wherein within a pocket area, the third warp ends are distinct from the first warp ends and the second warp ends. 
 
     
     
       8. A tubular graft for use in a stent graft, the tubular graft comprising:
 a first woven layer that forms a first side of the tubular graft, the first woven layer having a set of first warp ends; 
 a second woven layer that forms a second side of the tubular graft, the second woven layer having a set of second warp ends, wherein the second warp ends are distinct from the first warp ends; and 
 a woven pocket flap that extends from the first woven layer, wherein a pocket opening is defined between the woven pocket flap and the first woven layer, and wherein the woven pocket flap includes at least one common weft yarn with the first woven layer, 
 wherein a triangular portion of the woven pocket flap forms an exterior surface of the tubular graft, 
 wherein the woven pocket flap includes a mouth configured to provide access to the pocket opening, the mouth facing a proximal direction or a distal direction, and 
 wherein the woven pocket flap includes a set of third warp ends, and wherein within a pocket area, the third warp ends are distinct from the first warp ends and the second warp ends. 
 
     
     
       9. The tubular graft of  claim 8 , wherein a first end of the triangular portion has more warp ends than a second end of the triangular portion, and wherein the first end is adjacent to the pocket opening. 
     
     
       10. The tubular graft of  claim 8 , further comprising a second woven pocket flap that extends from the second woven layer, wherein a second pocket opening is defined between the second woven pocket flap and the second woven layer, and wherein the second woven pocket flap includes at least one common weft yarn with the second woven layer. 
     
     
       11. The tubular graft of  claim 8 , the woven pocket flap further comprising a first woven pocket flap and a second woven pocket flap, wherein the mouth is formed by the first woven pocket flap, and wherein the mouth faces the proximal direction for receiving a first portion of a stent, and wherein a second mouth formed by the second woven pocket flap faces the distal direction for receiving a second portion of the stent. 
     
     
       12. The tubular graft of  claim 8 , wherein the pocket opening receives a portion of a stent. 
     
     
       13. The tubular graft of  claim 12 , wherein a securement point is formed between the woven pocket flap and the first woven layer to lock the portion of the stent within the pocket opening, and wherein the securement point is spaced from an edge of the woven pocket flap. 
     
     
       14. The tubular graft of  claim 8 , wherein the mouth for accessing the pocket opening extends radially outwardly from an exterior surface of the tubular graft.